Electrochemical Glucose Oxidation Using Glassy Carbon Electrodes Modified with Au-Ag Nanoparticles: Influence of Ag Content

Table 2

Oxidation peak and current density as a function of Ag content.

Sample	Potential, versus Ag/AgCl/KCl sat’d	Current density (mAcm^−2) @ 0.49 V versus Ag/AgCl/KCl sat’d
Poly-Au	−0.52 ± 0.01	1.0 ± 0.1
M1 (Au100-Ag0)	−0.39 ± 0.03	1.2 ± 0.1
M2 (Au90-Ag10)	−0.41 ± 0.04	0.82 ± 0.1
M3 (Au80-Ag20)	−0.49 ± 0.04	1.9 ± 0.3
M4 (Au70-Ag30)	−0.54 ± 0.04	0.5 ± 0.1